TY - BOOK AU - Ho Yu-Chi AU - Jia Qing-Shan AU - Zhao Qian-Chuan TI - Ordinal optimization: soft optimization for hard problems SN - 978-0-387-37232-7 U1 - 003.5 PY - 2007/// CY - New York PB - Springer-Verlag KW - Complex systems KW - Mathematical models KW - Mathematical optimization KW - System analysis ER -